Locks for sliding members

ABSTRACT

This invention is directed to locking mechanisms for overlapping parallel sliding members, such as sliding doors, double sash windows and the like, comprising a hinge member having two leaf members, each of which has knuckles aligning with the other to receive a pivot pin; one of said leaf members being provided with means for permanently affixing it to one sliding member, and the other leaf member being freely pivotal. The freely pivotal leaf member has a spring loaded detent positioned transversely thereof, and the fixed leaf member has an aperture in a pivot knuckle positioned to receive the detent when the said leaf members are substantially perpendicular to each other. The freely pivotal leaf member has an arcuate recess in the free edge thereof adjacent the spring loaded detent, to provide access to said detent to release the locking of the detent from the aperture.

United States Patent [191 Adickes, deceased [451 Sept. 24, 1974 LOCKS FOR SLIDING MEMBERS 22 Filed: Dec. 7, 1972 211 Appl. No.: 312,959

[52] US. Cl 292/207, 292/DIG. 9, 292/D1G. 20 [51] Int. Cl G05c 3/04 [58] Field of Search 292/DlG. 20, 207, 210, 292/DIG. 9; 16/191, 144, DIG. 40; 70/90;

Primary Examiner-Joseph H. McGlynn Assistant Examiner-Richard P. Tremblay Attorney, Agent, or FirmHal H. McCaghren [5 7 ABSTRACT This invention is directed to locking mechanisms for overlapping parallel sliding members, such as sliding doors, double sash windows and the like, comprising a hinge member having two leaf members, each of which has knuckles aligning with the other to receive a pivot pin; one of said leaf members being provided with means for permanently affixing it to one sliding member, and the other leaf member being freely pivotal. The freely pivotal leaf member has a spring loaded detent positioned transversely thereof, and the fixed leaf member has an aperture in a pivot knuckle positioned to receive the detent when the said leaf members are substantially perpendicular to each other. The freely pivotal leaf member has an arcuate recess in the free edge thereof adjacent the spring loaded detent, to provide access to said detent to release the locking of the detent from the aperture.

4 Claims, 7 Drawing Figures 1 LOCKS FOR SLIDING MEMBERS An object of this invention is to provide a simple inconspicuous element attached to one member of overlapping parallel sliding members, which may be positioned to permit free sliding of overlapping members with respect to each other, and positioned in another position to obstruct or prevent movement of said overlapping sliding members with respect to each other.

A further object of this invention is to provide a hinge type member having one leaf thereof permanently secured to one of overlapping sliding members, and the second leaf thereof freely pivotal to permit sliding of said overlapping members in one position; and, when turned 90 angle, to abut the face of one of said overlapping members to prevent displacement therebetween; and, means for locking said freely pivotal leaf member against displacment or rotation.

A still further object of this invention is to provide a device of the described which will be simple and economical in construction and efficient and durable in use.

The foregoing and other objects of this invention will be more fully understood from the following specification, taken in conjunction with the drawings, forming a part thereof, wherein:

FIG. 1 is a partial view of the meeting or adjacent edges of sliding glass doors, having frames therefore, in closed position, but the locking mechanism in open position to permit free longitudinal movement of the overlapping sliding doors:

FIG. 2 is a partial view of FIG. 1 wherein the locking member is set in position to abut the face of one sliding member, while being secured to the other member, to prevent longitudinal movement or sliding relationship between the two members;

FIG. 3 is a partial view of the application of the device of this invention to double hung sliding windows with the device secured to one member and permitting slidable relationship with the other member;

FIG. 4 is a partial view of FIG. 3 with the locking mechanism in locked position to prevent longitudinal displacement of one member with respect to the other;

FIG. 5 is a plan view of the device of this invention ready for application to sliding members, with the locked position shown in dotted lines;

FIG. 6 is a plan view of the device of this invention with parts cut away to show the construction of the spring loaded detent locking means; and,

FIG. 7 is a vertical sectional view of the device of this invention with the removable adhesive strip partially removed.

Referring to the drawings wherein like parts are given the same reference numeral, a sliding member such as a sliding glass door or window frame 1 l and an overlapping sliding member or mating door or window frame 12, has a glass pane 13 inserted therein, in the usual conventional construction manner. The device of this invention comprises a leaf l4 permanently secured to the glass pane and a movable leaf 15 hingedly connected to the fixed leaf 14 by means of knuckles 16 formedon each of said leafs and aligned to receive a pivot pin or pintle 17.

The movable leaf 15 has a recess bore or aperture 18 formed centrally therein having two diameters to present or provide a shoulder 19. A detent or pin 21 is slidably mounted in this bore or'aperture and has a shoulder 22 provided on said pin or detent 21. A compression spring 23 surrounding said detent is held under compression by said shoulder 22 on the detent 21 and the shoulder 19 provided in the recess, aperture or bore 18 in the leaf member 15. When the freely pivotal leaf 15 is angular disposed substantially with respect to the fixed leaf 14, the spring loaded detent 21 forces the free end 25 of the detent extending beyond the shoulder 22, into an aperture 26, provided in the knuckle 16 of the fixed leaf 14, to lock the two leafs in fixed position, and pivotal leaf abutting the frame 12 of the movable member to prevent displacement between the frame members. To permit free movement between the slidable members, the detent 21 is retracted and the pivotal leaf 15 is pivoted into the same plane as the fixed leaf 14.

The fixed member may be secured to one of the sliding members 11, in any conventional manner. However, a preferred method is to provide an adhesive film 27, of which there are many suitable films on the market and commercially available, having one side of the adhesive film secured to the back face of the fixed member 14; and, a removable protective strip or masking patch 28, which may be removed and the second adhesive surface of the film 27 placed against the glass pane 13 adjacent the comer of the frame 11, with the longitudinal axis of the pivot pin 11 parallel to the plane of travel of the frames 11 and 12 and firmly pressed against the pane in this position. The adhesive, will hold the leaf 14 in fixed position on the pane l3 thereafter.

Liquid contact adhesive, of which there are several commercially available, may be used in place of the adhesive film 27.

Having described the invention what is claimed is:

1. A locking mechanism for overlapping parallel sliding members, comprising a hinge member having two leafs,

each of said leafs being provided with apertured knuckles which are aligned,

a pivot pin inserted in said knuckles and having its longitudinal axis parallel to the plane of the direction of movement of said sliding members,

means securing one of said leafs to one of said sliding members,

the other and freely pivotal leaf being provided with a spring loaded detent positioned transversely thereof,

an aperture in the secured leaf to receive said detent when said leafs are positioned substantially 90 with respect to each other,

said overlapping members have frames supporting glass panes, and

the secured leaf is secured to the glass pane.

2. The device of claim 1, wherein said overlapping members are doors.

3. The device of claim 1, wherein said overlapping members are windows.

4. A locking mechanism for overlapping sliding doors having frames and glass panes supported therein, comprising a hinge member having two leafs,

each of said leafs being provided with knuckles which are aligned,

a pivot pin inserted in said knuckles,

means securing one of said leafs to the glass pane of one of said sliding doors near the corner thereof 3 4 adjacent the other said sliding door with the pivot versely thereof, P havmg longltudmal 3X15 Parallel to the Plane and an aperture in a knuckle of the secured leaf to of the direction of movement of said sliding members,

the other of said leafs being freely pivotal and pro- 5 vided with a spring loaded detent positioned transreceive said detent when said leafs are positioned substantially 90 with respect to each other.

UNITED. STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 33837693 I Dated I Sept-ember 4 s 1974 Inventor(s) Edward J. Adickes deceased, by Elizabeth A Adickes executrix 7 It 1s certlf ed thaterror appears in the above-identlfled patent add that said Letters Patent are hereby corrected as shown below: 7

' On the cover sheet item I76] "Dorothy Randall FIiSCh,..'

executrix". shouldkread Elizabeth A. Adickes, 'exe'cutrix Signed and sealed this 19th day of November 1974."

(SEAL) Attest:

McCOY M. GIBSON JR. Attesting Officer C. MARSHALL DANN Commissioner of Patents 

1. A locking mechanism for overlapping parallel sliding members, comprising a hinge member having two leafs, each of said leafs being provided with apertured knuckles which are aligned, a pivot pin inserted in said knuckles and having its longitudinal axis parallel to the plane of the direction of movement of said sliding members, means securing one of said leafs to one of said sliding members, the other and freely pivotal leaf being provided with a spring loaded detent positioned transversely thereof, an aperture in the secured leaf to receive said detent when said leafs are positioned substantially 90* with respect to each other, said overlapping members have frames supporting glass panes, and the secured leaf is secured to the glass pane.
 2. The device of claim 1, wherein said overlapping members are doors.
 3. The device of claim 1, wherein said overlapping members are windows.
 4. A locking mechanism for overlapping sliding doors having frames and glass panes supported therein, comprising a hinge member having two leafs, each of said leafs being provided with knuckles which are aligned, a pivot pin inserted in said knuckles, means securing one of said leafs to the glass pane of one of said sliding doors near the corner thereof adjacent the other said sliding door with the pivot pin having its longitudinal axis parallel to the plane of the Direction of movement of said sliding members, the other of said leafs being freely pivotal and provided with a spring loaded detent positioned transversely thereof, and an aperture in a knuckle of the secured leaf to receive said detent when said leafs are positioned substantially 90* with respect to each other. 